Disk-harrow spindle and boxing



R. A. PRESS. DISK HARROW SPINDLE AND BOXING.

APPLICATION FILED MAR. 30,1921- 1 ,39 1 5 3, Patented Sept. 27, 1921.

ZayA fla s,

, UNITED STATES.

PATENT OFFICE.

A B-AY A. rnnss, or GRINNEIIL, Kansas.

DISK-'HARROW SPINDLE AND BOXING.

Specification of Letters iatent.

Application filed March 30, 1921. Serial No. 456,890.

To all whom it may ooncem:

Be it known that I, RAY A. Press, a citi-' zen of the ,United States, residing at Grinnell, in the county of Grove and State Iof p'led connection between the harrow disks adjacent the opposite ends of the boxing,

. whereby the turning of one disk, will impart movement to the other and vice versa.

While the design and construction at present illustrated and set forth is deemed preferable, it is obvious that as a result of a reduction of the invention to a more practical form for commercial purposes, the invention may be susceptible of changes, and the right to these changes is claimed, provided they are comprehended within the scopeof what is claimed.

The invention comprises further features and combination of parts as will be hereinafter set forth, shown in the drawings and claimed.

In the drawings:

Figure 1 is a view in elevation showing a part of the harrow frame, and illustrating the improved disk harrow spindle and boxing as applied.

Fig. 2 is a vertical sectional view through the same showing it constructed in accordance with the invention.

Fig. 3 is a cross sectional view on line 33 of Fig. 2. Fig. 4 are detail views of the adjacent ends of the two projecting sleeves of the disks, whereby the disks may rotate together.

Referring to the drawings, 1 designates a shaft, on which the disk harrow spindle and boxing are mounted, and 2 denotes a harrow frane on which a depending arm 3 is carr1e Y This depending arm 3 is connected to a boxing 4, since the arm engages a depression or cavity 5 of an enlargement f the boxing, there being a transverse bolt or pin 7 extending through the enlargement and the lower end of the arm 3 to securely unite the boxing.

The boxing 4 comprises the upper and.

lower sections 8 and 9, which are substantially semi-circular in cross section and Which are chambered out as shown at 10.

and 11. These sections have lateral cars 12, which are secured together by means of the bolts 13. The I interiors of the sections 8 and 9 have semi-circular flanges or walls 14 and 15. The flange 14 is spaced from the outer end (which has a flange 16) of the sections or boxings, so has to provide a semiannular space 17, which receives the rings 18 and 19. 1

Patented Sept. 2'7, 1921.

. A harrow disk 20 is provided, and projecting from and carried by the disk in any sultable manner is a spindle sleeve 21, which rotatably fits the shaft 1, there being a nut 22 and washer 23 for holding the disk 20 on the shaft. This spindle sleeve 21 is threaded as shown at 24, and engages with the threads of the ring 19, holding the ring 19 111 position on the spindle sleeve. The

spindle sleeve passes through the opening 25 of the ring 18. The rings 18 and 19 have adjacent beveled faces 26 and 27, which are provided with annular race-ways 28 and 29, in which one or more ball bearings 30 are operable, so as to'insure easy revoluble movements of the parts. It is obvious that by threading the ring 19 on the spindle sleeve and since the ring 19 engages the cavities or annular spaces 17 of the boxing, the harrow .disk'20 is retained in place relatively to the boxing.

A second harrow disk 31 is mounted upon the shaft 1, and its spindle sleeve 32 extends into the boxing. The spindle sleeve 32 has a radial flange 33, which engages between the semi-circular flange 15 and the semicircular flanges .34 which are carried by the inner ends of the sections of the boxing, thereby not only preventing accessive movement of the harrow disk 31 toward the boxing, but also preventing accessive inward movement. In fact by this construction the disk harrow 31 is retained in position rela- 35 and 36, so that the disks20 and 31 will-1.

rotate together, during the operationof the tively to the boxing ,and the other dependsleeves machine. Arrangedin the semi-cylindrical cavities 10 and 11 of the two sections of the boxing is a hardwood filler or sleeve 37,

which is located between the flanges 14 and 15 of the sections of the boxing, thereby constituting bearings for the sleeves of the This wood spindles of the harrow, disks. filler or sleeve when worn may be easily renewed or replaced, by simply separating the two sections of the boxing, whlch not only permit the filler 0r sleeve to be replaced, but will also permit the harrow disks to'be separated, and removedfrom the shaft 1.

It is obvious thatthe shaft 1 may support harrow disks, arranged in pairs as illus-v trated, and rotatable together, for farming he shaft and "having their adiacent faces provided with spindle sleeves, slot and lug connections uniting the sleeves, whereby both disks may operate together, an annular ring threaded to one of the sleeves, a second annular ring fitted in the boxing, the two rings having adjacent beveled faces provided with race-ways for the reception of anti-frictional members, the outer end of said bo ing having an annular 'flange cooperati g with "a ring which is threaded on one of the spindle sleeves, to retain one harrow disk and spindle sleeve, on the shaft, the other end of the boxing having a radial flange, and an interior radial flange, a flange .on the spindle sleeve of the other harrow disk en aging between, the last two mentioned anges. to connect the second harrow disk to theboxing, the interior of the boxing near one of the. rings having an annular flange, and a hard wood filler sleeve- 7 mounted on the boxing surrounding the two spindle sleeves and interposed between the interior. flanges of the bearing boxin In testimony whereof I hereunto a my signature.

RA BRESS. 

